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my momma she told me don't worry about your size
She says, boys they like a little more booty to hold at night
You know I won't be no stick figure, silicone Barbie doll,
So, if that's what's you're into
Then go ahead and move along
She is saying that she loves who she is and that if you want her to change whi she is for someone else she wont take it so find something that fits your standards.Although she is saying that she perfers to be curvaceous she manages to stay positive about that by not pretending that she is something shes not. And that is the message or moral of All about that bass, pre chorus.